From owner-freebsd-hackers@FreeBSD.ORG Thu Jul 11 19:52:34 2013 Return-Path: Delivered-To: hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id 055E7E4B; Thu, 11 Jul 2013 19:52:34 +0000 (UTC) (envelope-from jordan.hubbard@gmail.com) Received: from mail-pb0-x22e.google.com (mail-pb0-x22e.google.com [IPv6:2607:f8b0:400e:c01::22e]) by mx1.freebsd.org (Postfix) with ESMTP id CCBFA1157; Thu, 11 Jul 2013 19:52:33 +0000 (UTC) Received: by mail-pb0-f46.google.com with SMTP id rq2so8286426pbb.33 for ; Thu, 11 Jul 2013 12:52:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=content-type:mime-version:subject:from:in-reply-to:date:cc :message-id:references:to:x-mailer; bh=ILI4KwZBzh+9i4sy36eP3P9yx3d9dUKb4HZg6P7fftY=; b=SlCPbUVT4XPjXG6+80Zq/A5qa4mz/E9BiTdPnbefBfPrMeuSDToyU33+tFb5OI5GfG ZtoX20sJxrRy1bJNL2n1ByeGA11RBOArle6E4nyjGCgAAcj/8rBrVT6fkRHrBRU1hJlD oY24vyTQorekm/Iu8+8yuZEuVR/DGFhv7Re8DtjG5GFras55uKKjJ1TxVlU6SetUEzub paaIjYTS2Bz4RoyYTnKTwqj2FMiwGNMDsHPKTAprjP/olnNLF5JJOFAt5dMQJflSAaS1 ZJ0FtIH08taCporMZwg6Et6k+mRo4suTQmUgIJmLrfTYEuZkdGdAZbH++Yx8MEgj3hMW 7Yfw== X-Received: by 10.68.98.33 with SMTP id ef1mr38452716pbb.59.1373572353545; Thu, 11 Jul 2013 12:52:33 -0700 (PDT) Received: from [10.20.30.70] (75-101-82-48.static.sonic.net. [75.101.82.48]) by mx.google.com with ESMTPSA id vi8sm32660302pbc.31.2013.07.11.12.52.31 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Thu, 11 Jul 2013 12:52:32 -0700 (PDT) Mime-Version: 1.0 (Mac OS X Mail 6.6 \(1510\)) Subject: Re: Kernel dumps [was Re: possible changes from Panzura] From: "Jordan K. Hubbard" In-Reply-To: <51DEC0E8.7010305@freebsd.org> Date: Thu, 11 Jul 2013 12:52:29 -0700 Message-Id: References: <9890DFF1-892A-4DCA-9E33-B70681154F43@mail.turbofuzz.com> <4F0DFAB7-D6D5-4068-A543-C9DF885D1A7D@dragondata.com> <51DEC0E8.7010305@freebsd.org> To: Julian Elischer X-Mailer: Apple Mail (2.1510) X-Mailman-Approved-At: Thu, 11 Jul 2013 19:54:49 +0000 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.14 Cc: hackers@freebsd.org, Kevin Day X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 11 Jul 2013 19:52:34 -0000 On Jul 11, 2013, at 7:27 AM, Julian Elischer wrote: > I could imagine that we could stash away a vimage stack just for this = purpose. > yould set it up on boot and leave it detached until you need it. >=20 > you just need to switch the interfaces over to the new stack on panic = and put them into 'poll' mode. That sounds like a rather clever solution to this problem (OS X doesn't = support vimage, despite repeated attempts on my part to change that). How much work do you think it would take to bang out a proof of concept? = Is anyone up to the challenge? Any incentives I can provide? This = would be really useful. :-) - Jordan